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McWiLL无线宽带接入系统测试及其在中低压（The Test of McWiLL Wireless Broadband Access System and Its Communication Application in Middle and Low Voltage Power Distribution Network）
McWiLL 无线宽带接入 配电网
2010/8/17
McWiLL（multi-carrier wireless information local loop，多载波无线信息本地环路）是集智能天线、CS-OFDMA、增强零陷、信道跟踪和预测、动态信道分配、频空联合检测等核心技术为一体的宽带无线通信系统。为此，介绍了McWiLL系统在配电网通信中应用的测试情况，重点在于McWiLL系统的覆盖面、业务容量和业务承载能力。基于中低压配电网的特点及其对通信的...
云广直流输电工程换流阀多重阀单元（Study on the Multiple Valve Unit Test of Yunnan-Guangdong UHVDC Transmission Project）
特高压直流输电 换流阀 型式试验 多重阀单元
2010/8/17
云广±800 kV直流输电工程用换流阀是世界上第一个特高压直流输电用晶闸管换流阀，其型式试验尚无成熟的具体规范和要求。与±500 kV及以下高压直流输电换流阀不一样，这种特高压换流阀是由2个12脉动的换流阀组串联组成，也不能简单地照搬前者的试验规范和要求。鉴此，重点讨论多重阀单元（MVU）类型Ⅲ（MVU连接在DC 600 kV与800 kV之间）的试验方法，确定型式试验方案为：选择短接试验法；短接...
TEST OF TOTAL HEAT FLUX FROM WOOD CRIB FIRE IN AND OUTSIDE COMPARTMENT
wood crib total heat flux ISO 9705 Room
2009/10/14
Performance-based design for passive building fire safety provisions is accepted by the authority in Hong Kong since 1998. This is also known as the "fire engineering approach", though the performance...